src/ndir.h

   1 /*
   2         <dir.h> -- definitions for 4.2BSD-compatible directory access
   3
   4         last edit:      09-Jul-1983     D A Gwyn
   5 */
   6
   7 #ifdef VMS
   8 #ifndef FAB$C_BID
   9 #include <fab.h>
  10 #endif
  11 #ifndef NAM$C_BID
  12 #include <nam.h>
  13 #endif
  14 #ifndef RMS$_SUC
  15 #include <rmsdef.h>
  16 #endif
  17 #include "vmsdir.h"
  18 #endif /* VMS */
  19
  20 #define DIRBLKSIZ       512             /* size of directory block */
  21 #ifdef VMS
  22 #define MAXNAMLEN       (DIR$S_NAME + 7) /* 80 plus room for version #.  */
  23 #define MAXFULLSPEC     NAM$C_MAXRSS /* Maximum full spec */
  24 #else
  25 #define MAXNAMLEN       15              /* maximum filename length */
  26 #endif /* VMS */
  27         /* NOTE:  MAXNAMLEN must be one less than a multiple of 4 */
  28
  29 struct direct                           /* data from readdir() */
  30         {
  31         long            d_ino;          /* inode number of entry */
  32         unsigned short  d_reclen;       /* length of this record */
  33         unsigned short  d_namlen;       /* length of string in d_name */
  34         char            d_name[MAXNAMLEN+1];    /* name of file */
  35         };
  36
  37 typedef struct
  38         {
  39         int     dd_fd;                  /* file descriptor */
  40         int     dd_loc;                 /* offset in block */
  41         int     dd_size;                /* amount of valid data */
  42         char    dd_buf[DIRBLKSIZ];      /* directory block */
  43         }       DIR;                    /* stream data from opendir() */
  44
  45 extern DIR              *opendir();
  46 extern struct direct    *readdir();
  47 extern long             telldir();
  48 extern void             seekdir();
  49 extern void             closedir();
  50
  51 #define rewinddir( dirp )       seekdir( dirp, 0L )